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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2507.10246 |
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| _version_ | 1866913939982385152 |
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| author | Li, Xiao-Hui Lu, Yuan-Ming Wan, Yuan |
| author_facet | Li, Xiao-Hui Lu, Yuan-Ming Wan, Yuan |
| contents | We show that an electric field can induce nonreciprocal spin wave dispersion in magnetic insulators with negligible spin-orbit coupling. The electric field controls the direction and magnitude of nonreciprocity through a nonlinear magnetoelectric effect without switching the magnetic ground state. By deriving spin space group symmetry constraints, we find only a subset of noncoplanar magnets exhibits this property, and identify a few candidates. For the example of hexagonal lattice tetrahedral antiferromagnet, our effective field theory analysis and microscopic model calculation yield results that are fully consistent with the symmetry analysis. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_10246 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Electric-Field Induced Spin Wave Nonreciprocity in Noncoplanar Magnets Li, Xiao-Hui Lu, Yuan-Ming Wan, Yuan Strongly Correlated Electrons We show that an electric field can induce nonreciprocal spin wave dispersion in magnetic insulators with negligible spin-orbit coupling. The electric field controls the direction and magnitude of nonreciprocity through a nonlinear magnetoelectric effect without switching the magnetic ground state. By deriving spin space group symmetry constraints, we find only a subset of noncoplanar magnets exhibits this property, and identify a few candidates. For the example of hexagonal lattice tetrahedral antiferromagnet, our effective field theory analysis and microscopic model calculation yield results that are fully consistent with the symmetry analysis. |
| title | Electric-Field Induced Spin Wave Nonreciprocity in Noncoplanar Magnets |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2507.10246 |